Casting mold



March 12, 1935. F. M. POE 1,993,802

CASTING MOLD Original Filed March 7, 1951 INVENTOR i5 ATTORNEY PatentedMar. 12, 1935 UNITED STATES CASTING MOLD Fred M. Poe, Suffer-n,

N. Y., miglior to The American Brake Shoe and Foundry Company, New York,N. Y., a corporation of Delaware Original application March-"l, 1931,Serial No.

Divided and this application August 16, 1933, Serial No. 685,332

s claims.

This application is a division of my application Serial No. 520,782,illed March 7, 1931.

The invention relates to casting molds of that class commonlyreferred'to as repetition or permanent molds and which are intended foruse in the manufacture of railway brake shoes and other castingsproduced in large quantities.

The object of the invention is to provide a pivoted mold which can beswung between horizontal and vertical positions and to simplify andfacilitate the casting operation by pivoting the drag of the mold upon asupport and providing the cope with clamping means for engagement withthe pivot of the drag to secure the cope upon the drag and to the moldsupport at the pivot of the drag whereby the cope is ilrmly and rigidlysecured upon the drag to the pivot oi the drag.

And a further object of the invention is to provide simple andconvenient means for facilitating the use of the mold and for supportingthe cope detached from the drag.

In the accompanying drawing illustrating a selected embodiment of theinvention Fig. l is a side view of the mold showing it in broken linesin horizontal position and in iull lines in vertical pouring position.

Fig. 2 is a sectional view on the line 2-2 of Fig. l showing the drag inelevation.

Referring to the drawing, the mold support comprises a base 3, uprightbrackets 4, 4 mounted on the base and providing bearings 5, 5 in whichthe trunnions 6, 6 of the drag 7 are journaled so that the mold may beswung between horizontal position as shown in broken lines in Fig. 1 andvertical position as shown in full lines. To retain the mold inhorizontal or vertical position a spring-pressed pin 8 mounted in one ofthe brackets 4 extends into one of suitablylocatedopenings 9 in theadjacent side wall of the drag. The drag comprises a metal shell 10having a refractory block 11 and metal chill blocks 12, 12 arrangedtherein. The chill blocks are clamped against the ends of'the refractoryblock by adjusting bolts 13 mounted in the end walls of the shell andbearing against the chill blocks. The cope comprises a metal shell 14having a refractory block 15 arranged therein. The mold cavity 16 islocated partly in the cope and-partly in the drag and the pouring gate17 at one end of the mold communicates with one end of the mold cavity.The engaging faces of the cope and drag are disposed in ilatintersecting planes extending at an angle somewhat similar to thecurvature of lthe mold cavity to enable the parting defined by theengaging faces of the cope and drag to intersect the mold cavitythroughout its length and to properly seat the cope on the drag andeiect registration thereof. Pins 19 mounted in ears 18 on the side wallsof the drag are arranged to engage openings in ears 20 on the side wallsof the cope as a further means of registering the cope and drag.

It is important to provide means for locking the cope tightly and iniixed position upon the drag to swing therewith into pouring positionand into horizontal position, after the pouring operation is completed,for removal of the cope and the casting; and it is important that thefasteningor securing means s hould be capable of easy manipulation, thatthey should be strong and substantial to prevent separation of the copefrom the drag which would result in the formation of iins at the partingand objectionable deformation of the casting; and it is also desirablethat the weight of the cope and of that part of the casting therein besustained from the support instead of from some part of the shell of thedrag. With these ends in view I have provided studs 21 on the side wallsof the cope and pivotally mount clamps 22 thereon, these clamps havinghooked ends which are adapted to be engaged with the trunnions 6 betweenthe side walls of the shell of the drag and the bearings 5 in thesupporting brackets 4 whereby the cope is clamped securely and rigidlyupon the drag and the clamping means are engaged with the trunnions ofthe drag at the bearings in the supporting brackets. The hooked ends ofthe clamps engage the trunnions and the trunnions are journaled in thebearings so that the clamps will not become loosened or disengaged whenthe mold is being turned between vertical and horizontal positions. Thepivot studs 21 of the clamps are located in substantial alinement withthe pivot trunnions of the drag and mold and when the clamp hooks engagethe trunnions the weight of the cope and that part vof the castingtherein will be sustained through the trunnions by the supports.

It is necessary to replace and remove the cope for each castingoperation. The cope is heavy and the casting operation is conducted inthe presence of a high degree of heat and it is desirable to facilitatethe handling of the cope in every possible way for efcient results; andfor this purpose I provide a rest 23 on the base 3 and feet 24 on theend of the cope opposite the pouring gate and handles A30 on the cope.The handle ends of the hook clamps may be operated to release theclampsfrom the trunnions, after the mold has been swung to horizontal positionand fastened in this position, and then the cope may be lifted from thedrag and s'et with its feet 24 upon the rest 23 at the side of the drag.This is a convenient position for inspection of the mold cavity in thecope and for the insertion of inserts in the cope for embedment in thecasting if so required. Such inserts are held in the cope by awire 25which extends through the Wall of the cope and passes over the groovedcam 26 mounted on the shaft 27 journaled in brackets 28 on the cope. Theshaft 27 is operated by a crank 29 to tighten the Wire 25 and hold theinserts (not shown) in position against the top wall of the mold cavityin the cope. In preparing for a casting operation the drag should besecured in horizontal position, whatever inserts are to be embedded inthe casting should be secured in place in the mold cavity and to thecope or to the drag, or to both, and then the cope is seated upon thedrag and secured thereto. If it should be required to treat the walls ofthe mold cavity by cleaning or spraying it should be done before thecope is assembled with the drag. After the assembly is completed and thecope locked in place the mold is swung to and secured in a verticalposition and the molten metal is poured into the mold cavity through thepouring gate. After the molten metal hassuftlciently solidied the moldis swung to horizontal position, the wires securing the inserts areclipped, the cope is removed and placed in standing position on the rest23, the casting is removed from the drag, and the mold is prepared forthe next pouring operation.

I have illustrated and described a selected embodiment of the inventionwhich has been found to be satisfactory in practical use but I do notwish to be limited to the precise details of construction herein shownand described but reserve the right to make such changes and alterationsas fall within the scope of the following claims:

I claim:

l. A repetition casting mold comprising a support, a drag pivoted toswingbetween horizontal and vertical positions in said support, a copefor the drag, and means pivotally mounted on the cope and operativelyengaging the pivot of the drag to clamp the cope on the drag and sustainthe weight of the cope and the part of the casting contained thereinfrom the support during pivotal movement of the drag and cope.

2. A repetition casting mold comprising a support, a drag pivoted toswing between horizontal and vertical positionsv in said support, a copefor the drag, and hook clamps pivotally mounted on the cope andoperatively engaging the pivot of the drag to clamp the cope on the dragand sustain the weight of the cope and the part of the casting containedtherein from the support during pivotal movement of the drag and cope.

3. A repetition casting mold comprising a support having bearingstherein, a drag, trunnions on the drag journaled in said bearings tosupport the drag for pivotal movement between horizontal and verticalpositions, a cope for the drag, and means pivotally mounted on the copeand operatively engaging the trunnions for clamping the cope on the dragand sustaining the Weight of the cope and the part of the castingcontained therein from the support during pivotal movement of the dragand cope.

4. A repetition casting mold comprising a support having bearingstherein, a drag, trunnions on the drag journaled in said bearings tosupport the drag for pivotal movement between horizontal and verticalpositions, a cope for the drag, and clamps pivotally mounted on the copeat the sides thereof and having operating handles at one end and hooksat the other end to engage the trunnions and secure the cope on the dragso that the weight of the cope and that part of the casting therein willbe sustained from the support during pivotal movement of the drag andcope.

5. A repetition casting mold having a base, supporting brackets on thebase having bearings, a rest on the base at one side of said brackets, adrag, trunnions on the drag journaled in said bearings, a cope adaptedfor cooperation with the drag, feet on one end of the cope, and clampspivotally mounted on the cope and engaging said trunnions to clamp thecope on the drag, said clamps being detachably engaged with thetrunnions to permit removal of the cope from the drag and disposal ofthe cope with its feet engaging said rest to support the cope alongsidethe drag in position for repetition of a casting operation.

FRED M. POE.

